is a specific kind of: dilleniid dicot genus.

has as a part: American cress, American watercress, Barbarea praecox, Barbarea verna, Belle Isle cress, early winter cress, land cress | Barbarea vulgaris, rockcress, rocket cress, Sisymbrium barbarea, yellow rocket.

has as a member: scurvy grass, St. Barbara's herb, winter cress.

is a member of: Brassicaceae, Cruciferae, family Brassicaceae, family Cruciferae, mustard family.